This process of dephasing and reduction in the amount of transverse magnetization is called transverse relaxation. A characteristic time representing the decay of the signal by 1/ e, or 37%, is called the T2 relaxation time (1).2 * is shorter than T2 (Fig 1), and their relationship can be expressed by the following equation (3), where Î³ is the gyromagnetic ratio: 1/T2 * = 1/T2 + Î³ Î´B inhom, or 1/T2 * = 1/T2 + 1/T2â², where 1/T2â² = Î³ Î´B inhom, and Î´B inhom is the magnetic field inhomogeneity across a voxel.
An average central ac will use 3000 to 5000 watts of power every hour for around 9 hours a day during the hotter months. Click calculate to find the energy consumption of a central air conditioner using 3500 Watts for 3 hours a day @ $0.10 per kWh. Running 3 hours a day is the same as running 9 hours a day for 4 of the warmer months. Cost Per Hour:
2 tons= 1450 kwh; 3 tons= 2100 kwh; 4 tons= 2750 kwh; Room Units: 1 Ton, EER 6= 2 kW per hour; 1 Ton, EER 8= 1 1/2 kW per hour; 3/4 Ton, EER 6= 1 1/2 kW per hour; 3/4 ton, EER 8= 1 kW per hour; Dehumidifier= 252 kWh per month; Fans: Whole House= 30 kwh; Circulating= 4 kwh; Ceiling= 12 kwh; Water Heating/Supply: Water Heater: Typical Use, 2 Persons= 195 kwh; 4 Persons= 310 kwh